Polycelis Sinensis

''Polycelis'' is a genus of planarians in the family Planariidae found in the Holarctic region (North America and Eurasia). The genus was described in 1831 by Christian Gottfried Ehrenberg and currently has no consensus on the exact number of species.

Description

Species of ''Polycelis'' are characterized by having multiple eyes on the anterior region, similar to the related genera ''Seidlia (planarian), Seidlia'' and ''Ijimia''. It is differentiated from them by lacking both a highly developed muscle coat around the male atrium (as seen in ''Seidlia'') and Reproductive system of planarians, adenodactyls (as seen in ''Ijimia'').

Habitat

Most species of ''Polycelis'' inhabit clean, high-altitudinal streams with water temperatures between 0 and 14 °C in Eurasia and North America.

Species

The following species are recognised in the genus ''Polycelis'':Tyler S, Schilling S, Hooge M, and Bush LF (comp.) (2006-2025
Turbellarian taxonomic database
Version 2.2

* ''Polycelis aurantiacus''
* ''Polycelis benazzii''
* ''Polycelis bilinearis''
* ''Polycelis brunnea''
* ''Polycelis catulus''
* ''Polycelis cormita''
* ''Polycelis coronata''
* ''Polycelis eburnea''
* ''Polycelis elegans''
* ''Polycelis eudendrocoeloides''
* ''Polycelis eurantron''
* ''Polycelis fallax''
* ''Polycelis felina''
* ''Polycelis gracilis''
* ''Polycelis jinglensis''
* ''Polycelis jingyuanica''
* ''Polycelis kashmirica''
* ''Polycelis koslowi''
* ''Polycelis kulsaika''
* ''Polycelis lhunzhubica''
* ''Polycelis linkoi''
* ''Polycelis nigra''
* ''Polycelis nigro-fusca''
* ''Polycelis nyingchica''
* ''Polycelis oculimarginata''
* ''Polycelis pallida''
* ''Polycelis pamirensis''
* ''Polycelis panniculatus''
* ''Polycelis pantherina''
* ''Polycelis pathan''
* ''Polycelis polyopis''
* ''Polycelis pulla''
* ''Polycelis receptaculosa''
* ''Polycelis relicta''
* ''Polycelis sapporo''
* ''Polycelis schmidti''
* ''Polycelis sierrensis''
* ''Polycelis sinensis''
* ''Polycelis stummeri''
* ''Polycelis surantion''
* ''Polycelis tenuis''
* ''Polycelis tibetica''
* ''Polycelis tothi''
* ''Polycelis vaginuloides''
* ''Polycelis variabilis''
* ''Polycelis wutaishanica''
* ''Polycelis yangchengensis''
* ''Polycelis xigazensis''

References

{{Taxonbar, from=Q4993810

Continenticola
Platyhelminthes genera